DiscourseでのVERP、メールバウンス、追加設定について混乱しています

[RGJ (Richard - Communiteq)]

This is explained in the setup guide:

@zogstrip

• Log in to SendGrid and go to Mail Settings
• expand the Event Webhook setting and enable it if it isn’t already
• click edit to set the HTTP POST URL to http://your.discourse/webhooks/sendgrid
• make sure you selected the following 3 actions: Dropped, Deferred and Bounced
• save your changes by clicking the